Neurofibromatoses (NF) is a genetic disorder of the nervous system. NF has been classified into two distinct types, NF1 and NF2. NF1 is more common, occurring in about 1:4,000 births. NF2, also known as Central Bilateral Acoustic NF, is much rarer. NF2 is characterized by multiple tumors on the cranial and spinal nerves and is confirmed by bilateral acoustic neuromas. The first symptom is loss of hearing and usually occurs between the ages of 10 and 30. Patients may also suffer from other cranial and spinal nerve damage.